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Like spores, they, too, can hitch a ride on the jet stream.
孢子也能免費搭乘高空急流
Enduring temperatures of minus 30 degrees centigrade,
當溫度低于30攝氏度時
a spider can cross the breadth of the Pacific in a matter of days.
一只蜘蛛僅在數天內就能穿越太平洋
Larger insects and animals need more than a breeze to carry them away.
體型稍大一點的昆蟲和動物則需要更大的風力
Vast tracts of warm water are a perfect environment for cyclones.
廣闊的溫水域是產生颶風的完美環境
Over half the cyclones on the planet - around 30 a year - form in the Pacific Ocean.
地球上超過一半的颶風，每年大約有30次，來自南太平洋
Heated by the warm tropical sun,
受到熱帶氣候的影響
water evaporates and forms massive thunderstorms,
海水在蒸發后形成巨大的雷暴雨
fuelling a whirling vortex in some cases up to 500 miles wide.
進而激起颶風，有些直徑能達到800公里
When they collide with islands, they unleash their fury.
颶風將狂怒發泄在途徑的島嶼上。
